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Finding the Fourth Proportional to 604.79, 907.30 and 193.89

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Solution

The fourth proportional to 604.79, 907.30 and 193.89 is: 290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.79 : 907.30 = 193.89 : x
  2. Step 2: Convert to fraction form
    604.79/907.30 = 193.89/x
  3. Step 3: Cross multiply
    604.79x = 907.30 × 193.89
  4. Step 4: Simplify right side
    604.79x = 175,920.04
  5. Step 5: Solve for x
    x = 175,920.04/604.79
  6. Step 6: Final answer
    x = 290.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.